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DEF Pump: The DEF pump is responsible for transferring the DEF fluid from the tank to the Selective Catalytic Reduction (SCR) system. It ensures a consistent flow of DEF fluid to the dosing unit and helps maintain the proper dosing rate for efficient emission reduction.
The DEF pump feeds the fluid through the lines that connect it to the dosing valve. The dosing valve is controlled by the computer and delivers precise amounts of DEF fluid to the decomposition reactor.
The DD15 DEF pump diagram shows the components and workings of the DEF pump used in the Detroit Diesel DD15 engines. The DEF (Diesel Exhaust Fluid) pump is an integral part of the selective catalytic reduction (SCR) system, which helps reduce harmful emissions in modern diesel engines.
Diesel exhaust fluid (DEF; also known as AUS 32 and sometimes marketed as AdBlue[3]) is a liquid used to reduce the amount of air pollution created by a diesel engine. Specifically, DEF is an aqueous urea solution made with 32.5% urea and 67.5% deionized water.
To comply with cutting down emission levels, diesel engine manufacturers as a whole decided to implement a selective catalytic reduction (SCR) system, which includes an SCR catalyst, a pump, a tank, lines, an injector, and a synthetic, non-toxic diesel exhaust fluid (DEF).
Diesel Exhaust Fluid (DEF) also known as Reductant is a fluid comprised of highly purified and deionized water and urea. DEF is highly corrosive. Avoid exposure to electrical components. It is normal for DEF to freeze at temperatures below 120F/-110C. Only API certified DEF should be used in Ford reductant systems.
26 Απρ 2023 · Diesel exhaust fluid (DEF) is a non-hazardous solution used within a selective catalytic reduction (SCR) system to break down harmful pollutants (NOx) generated by a diesel engine. DEF is 32.5% urea, or aqueous ammonia solution, and 67.5% deionized water.
